Paper II of the Brane-Bulk Series Cosmic Spacetime Memory and the Topological Origin of Quantum Entanglement B. D. Jagadeesan, MD

Quantum entanglement is proposed to be the topological memory of the Big Bang nucleation event (Paper I). Two particles that were in causal contact during nucleation share a common xed line in the 5D phase space a 1D closed curve in the product space of brane × bulk coordinates. From the 4D brane perspective this connec- tion is nonlocal; from 5D it is a local geometric coupling. The non-associativity of the octonions is the algebraic basis of quantum non-factorizability: entangled states cannot be decomposed into product states for exactly the same algebraic reason that octonionic multiplication cannot be reordered. The automorphism group G2 organises the space of non-factorizable correlations into orbits. The rst experimental observation of classical xed lines in the CERN SPS (Bartosik, Franchetti & Schmidt, Nature Physics 2024) provides laboratory-scale conrmation of this geometric mechanism. Bell's theorem is satised: the 5D hidden variable is genuinely nonlocal on the brane. Quantum deco- herence is drift o the focal manifold (increase in the D parameter of Bartosik et al.). Quantum error correction is engineering of the sump focal geometry. Part of the One-Octonion Brane-Bulk Framework series. Anchor DOI: 10.5281/zenodo.19120873. Community: one-octonion-brane-bulk. Author: Bharathi Dasan Jagadeesan, M.D., University of Minnesota. ORCID: 0000-0002-1143-941X.